Fair Value Measurements (Tables)

12 Months Ended

Sep. 30, 2015

Fair Value Measurements

Schedule of company's fair value hierarchy for its financial assets and liabilities measured at fair value on a recurring basis

	September 30, 2014 Fair Value Measurements
	at Reporting Date Using:
	Level 1		Level 2		Level 3		Total
Assets:
Cash and money market funds	$	45,871	$	—	$	—	$	45,871
Pension plan assets		41,968		174,994		—		216,962
Total fair value	$	87,839	$	174,994	$	—	$	262,833

	September 30, 2015 Fair Value Measurements
	at Reporting Date Using:
	Level 1		Level 2		Level 3		Total
Assets:
Cash and money market funds	$	49,045	$	—	$	—	$	49,045
Pension plan assets		71,051		134,447		—		205,498
Total fair value	$	120,096		134,447	$	—	$	254,543